Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of spiral is as below...

Cochleated :: Cochleated (a.) Having the form of a snail shell; spiral; turbinated.

Plagihedral :: Plagihedral (a.) Having an oblique spiral arrangement of planes, as levogyrate and dextrogyrate crystals..

Gyroidal :: Gyroidal (a.) Turning the plane of polarization circularly or spirally to the right or left.

Winkle :: Winkle (n.) Any one of various marine spiral gastropods, esp., in the United States, either of two species of Fulgar (F. canaliculata, and F. carica)..

Homodromous :: Homodromous (a.) Running in the same direction; -- said of stems twining round a support, or of the spiral succession of leaves on stems and their branches..

Rissoid :: Rissoid (n.) Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidae, found both in fresh and salt water..

Concho-spiral :: Concho-spiral (n.) A kind of spiral curve found in certain univalve shells.

Volution :: Volution (n.) A whorl of a spiral shell.

Stentor :: Stentor (n.) Any species of ciliated Infusoria belonging to the genus Stentor and allied genera, common in fresh water. The stentors have a bell-shaped, or cornucopia-like, body with a circle of cilia around the spiral terminal disk. See Illust. under Heterotricha..

Ladies'' Tresses :: Ladies' tresses () A name given to several species of the orchidaceous genus Spiranthes, in which the white flowers are set in spirals about a slender axis and remotely resemble braided hair..

Valvata :: Valvata (n.) A genus of small spiral fresh-water gastropods having an operculum.

Auger :: Auger (n.) A carpenter's tool for boring holes larger than those bored by a gimlet. It has a handle placed crosswise by which it is turned with both hands. A pod auger is one with a straight channel or groove, like the half of a bean pod. A screw auger has a twisted blade, by the spiral groove of which the chips are discharge..

Solarium :: Solarium (n.) Any one of several species of handsome marine spiral shells of the genus Solarium and allied genera. The shell is conical, and usually has a large, deep umbilicus exposing the upper whorls. Called also perspective shell..

Lituus :: Lituus (n.) A spiral whose polar equation is r2/ = a; that is, a curve the square of whose radius vector varies inversely as the angle which the radius vector makes with a given line..

Suspiral :: Suspiral (n.) A breathing hole; a vent or ventiduct.

Helispherical :: Helispherical (a.) Spiral.

Cochlea :: Cochlea (n.) An appendage of the labyrinth of the internal ear, which is elongated and coiled into a spiral in mammals. See Ear..

Dextrorse :: Dextrorse (a.) Turning from the left to the right, in the ascending line, as in the spiral inclination of the stem of the common morning-glory..

Spirant :: Spiralozooid (n.) One of the special defensive zooids of certain hydroids. They have the form of long, slender tentacles, and bear lasso cells..

Hydractinian :: Hydractinian (n.) Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on spiral shells occupied by hermit crabs. See Illust. of Athecata..

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